1/* 2 * Copyright (c) 2010 Apple Inc. All rights reserved. 3 * 4 * @APPLE_LICENSE_HEADER_START@ 5 * 6 * This file contains Original Code and/or Modifications of Original Code 7 * as defined in and that are subject to the Apple Public Source License 8 * Version 2.0 (the 'License'). You may not use this file except in 9 * compliance with the License. Please obtain a copy of the License at 10 * http://www.opensource.apple.com/apsl/ and read it before using this 11 * file. 12 * 13 * The Original Code and all software distributed under the License are 14 * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER 15 * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES, 16 * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY, 17 * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT. 18 * Please see the License for the specific language governing rights and 19 * limitations under the License. 20 * 21 * @APPLE_LICENSE_HEADER_END@ 22 */ 23#include <stdio.h> // fprintf(), NULL 24#include <stdlib.h> // exit(), EXIT_SUCCESS 25#include <string.h> 26#include <dlfcn.h> 27#include <pthread.h> 28 29#include "test.h" // PASS(), FAIL(), XPASS(), XFAIL() 30 31 32void* h1 = NULL; 33void* h2 = NULL; 34 35static void* work(void* ignore) 36{ 37 for (int i=0; i < 10000; ++i) { 38 h1 = dlopen("libfoo1.dylib", 0); 39 if ( h1 == NULL ) { 40 FAIL("dlopen failed: %s", dlerror()); 41 exit(0); 42 } 43 dlclose(h2); 44 h2 = dlopen("libfoo2.dylib", 0); 45 if ( h2 == NULL ) { 46 FAIL("dlopen failed: %s", dlerror()); 47 exit(0); 48 } 49 dlclose(h1); 50 } 51 52 //fprintf(stderr, "done with foos\n"); 53 return NULL; 54} 55 56 57int main() 58{ 59 h2 = dlopen("libfoo2.dylib", 0); 60 if ( h2 == NULL ) { 61 FAIL("dlopen failed: %s", dlerror()); 62 exit(0); 63 } 64 65 // other thread dlopens and closes libfoo.dylib 500 times 66 pthread_t other; 67 if ( pthread_create(&other, NULL, work, NULL) != 0 ) { 68 FAIL("pthread_create failed"); 69 exit(0); 70 } 71 72 // this thread looks up a symbol 10,000 times 73 for (int i=0; i < 15000; ++i) { 74 void* handle = dlopen("libclient.dylib", 0); 75 if ( handle == NULL ) { 76 FAIL("dlopen failed: %s", dlerror()); 77 exit(0); 78 } 79 typedef void (*proc_t)(); 80 proc_t proc = dlsym(handle, "doit"); 81 if ( proc == NULL ) { 82 FAIL("dlsym failed: %s", dlerror()); 83 exit(0); 84 } 85 (*proc)(); 86 dlclose(handle); 87 } 88 //fprintf(stderr, "done with libclient\n"); 89 90 void* result; 91 pthread_join(other, &result); 92 93 PASS("threaded-flat-lookup"); 94 return 0; 95} 96